CN118758961B - A device for testing the quality of cotton ginning - Google Patents

Abstract

The invention provides a device for testing cotton rolling quality, and belongs to the technical field of testing defects contained in cotton by utilizing an optical means. The device for testing cotton rolling quality comprises a flattening mechanism and a fixing mechanism, wherein the flattening mechanism and the fixing mechanism are arranged side by side, the flattening mechanism is used for flattening a rolled cotton sample to form a thin cotton layer, and a ceiling with a camera device and a lighting device is arranged at the top of the fixing mechanism; the fixed establishment includes the ground rail, is equipped with on the ground rail and cuts fork expansion bracket, and the expansion bracket includes X shape head end and cuts fork arm and tail end and cut fork arm, still is equipped with a plurality of middle fork arms that link to each other between head end and the tail end and cut fork arm, and the upper end of head end is cut fork arm and is equipped with the head end roller group that two rollers distributed from top to bottom, and the upper end of each middle fork arm is equipped with the middle roller group that two rollers distributed from top to bottom, and the upper end of tail end is cut fork arm is equipped with the tail end roller group that two rollers distributed from top to bottom, and the round pin axle top of head end fork arm is equipped with the head end deflector roll.

Description

A device for testing the quality of cotton ginning

Technical Field

The invention relates to the technical field of using optical means to test defects contained in cotton, and in particular to a device for testing the quality of cotton ginning.

Background Art

Cotton ginning is the process of seed cotton being processed to form lint. The quality of cotton ginning is mainly reflected in the roughness of the cotton appearance and the degree of defects it contains. After the seed cotton is processed, the appearance shows different degrees of roughness and the degree of defects it contains is also different.

After the seed cotton is processed, the defects it contains generally include fiber seed crumbs, sterile seeds, broken seeds, cotton knots, stringy fibers, soft seed skin, and stiff flakes, etc. The existence of these defects will have certain harm to the subsequent spinning process. Moreover, these defects are not easy to remove during the spinning process.

In order to further improve the efficiency of cotton ginning quality inspection, a Chinese patent with application number CN2013107478645 was published on April 2, 2014, which disclosed a cotton ginning quality inspection system. Its working principle is to press the cotton sample on the optical glass by squeezing, and the bottom CCD camera detects the defects of the cotton sample through the optical glass. However, due to the pressure on the cotton sample, it is impossible to dynamically expose the defects contained in the cotton sample to the inspection angle, and there is a situation where the defects contained in the cotton sample cannot be fully detected. Therefore, there is still room for improvement in the inspection effect.

Summary of the invention

The present invention aims to solve the above-mentioned technical problems and provides a device for testing the quality of cotton ginning.

The technical solution of the present invention is a device for testing the quality of cotton ginning, comprising a flattening mechanism and a fixing mechanism arranged side by side, wherein the flattening mechanism is used to flatten the cotton sample after ginning to form a thin cotton layer, and the top of the fixing mechanism is provided with a ceiling with a camera device and a lighting device;

The fixing mechanism comprises a ground rail, on which a scissors-type telescopic frame is arranged, and the telescopic frame comprises an X-shaped head end scissors arm and a tail end scissors arm, and a plurality of connected intermediate scissors arms are arranged between the head end scissors arm and the tail end scissors arm, the upper end of the head end scissors arm is provided with a head end roller group with two rollers distributed up and down, the upper end of each of the intermediate scissors arms is provided with an intermediate roller group with two rollers distributed up and down, and the upper end of the tail end scissors arm is provided with a tail end roller group with two rollers distributed up and down, a head end guide roller is arranged above the pin shaft of the head end scissors arm, and the head end guide roller and the pin shaft of the head end scissors arm are connected by a first elastic band, a tail end guide roller is arranged above the pin shaft of the tail end scissors arm, and the tail end guide roller and the pin shaft of the tail end scissors arm are connected by a second elastic band, the lower roller of the head end scissors arm, the The lower roller, the lower roller of the tail end scissor arm, the tail end guide roller, and the head end guide roller are covered with a conveyor belt, the two ends of the upper roller of the head end roller group are respectively connected to the two ends of the lower roller of the head end roller group, the two first synchronous wheels are respectively connected to the two ends of the lower roller of the head end roller group, the two ends of the upper roller of the tail end roller group are respectively connected to the two ends of the lower roller of the tail end roller group, the head end roller group and the tail end roller group are driven by a motor, the upper rollers of each intermediate roller group are respectively driven by a motor, the ground rail is provided with a transverse electric cylinder for driving the head end scissor arm to open, the upper roller of each intermediate roller group is hollowed out and filled with an inflatable bag, the upper roller surface of each intermediate roller group is provided with a spiral groove, and the spiral directions of the upper rollers of two adjacent intermediate roller groups are opposite.

As an embodiment, when the telescopic frame is in an initial state, the upper roller and the lower roller of the head end roller group are directly opposite to the output port of the flattening mechanism.

As an implementation mode, a limit plate is provided at the end of the ground rail, and when the telescopic frame is in an initial state, the lower end of the head-end scissor arm contacts the limit plate.

As an embodiment, the ground rail includes an outer plate and an inner plate, a rail groove is formed between the outer plate and the inner plate, an outer rail is opened on the outer plate, and an inner rail is opened on the inner plate. The lower ends of the head end scissors arm, the middle scissors arm, and the tail end scissors arm are respectively provided with outer wheels and inner wheels, and the outer wheels and the inner wheels are respectively movably connected to the outer rail and the inner rail.

As an implementation manner, the transverse electric cylinder is provided at two locations and is respectively located on the inner sides of the two ground rails.

As an embodiment, the transverse electric cylinder includes a telescopic rod, the end of the telescopic rod is provided with an end sleeve, and the end sleeve is sleeved on the inner wheel of the head end scissor arm.

As an implementation mode, one end of the upper roller of each intermediate roller group is provided with a cover plate and the other end is open, and the open end of the upper roller of each intermediate roller group is provided with an air pipe connected to the inflatable bag, and the air pipe is connected to an external air source.

As an embodiment, the motor driving the upper roller of the intermediate roller group is located at the open end of the upper roller of the intermediate roller group.

As an embodiment, the upper roller of the head end roller group and the first synchronous wheel, as well as the first synchronous wheel and the lower roller of the head end roller group are connected by a first transmission belt, and the upper roller of the tail end roller group and the second synchronous wheel, as well as the second synchronous wheel and the lower roller of the tail end roller group are connected by a second transmission belt.

As an implementation manner, a placement groove is opened at the upper end of the tail end scissor arm, and the second synchronous wheel and a part of the second transmission belt are located in the placement groove.

Compared with the prior art, the invention has the beneficial effect that the device for testing the quality of cotton ginning is used to flatten the cotton sample after ginning to form a thin cotton layer by the flattening mechanism, and the thin cotton layer is sent into the fixing mechanism from the upper and lower rollers of the head end roller group. After stopping the transmission, the transverse electric cylinder drives the head end scissor arm to open horizontally along the direction of the ground rail. Due to the characteristics of the scissor arm itself, the spacing between the upper rollers of each intermediate roller group, the spacing between the upper rollers of the intermediate roller group and the upper rollers of the head end roller group, and the spacing between the upper rollers of the intermediate roller group and the upper rollers of the tail end roller group are uniformly increased. The thin cotton layer originally pressed on the conveyor belt by each upper roller is stretched in the transmission direction. Thereafter, after the action of each intermediate roller group, the thin cotton layer is alternately stretched in different directions. Compared with the original linear transmission direction, the stretching direction after the action of the intermediate roller group is equivalent to a dynamic W shape. Therefore, the defects contained in the cotton sample are exposed as much as possible to the detection angle. Therefore, the device for testing the quality of cotton ginning can press the cotton sample onto the conveyor belt and then dynamically stretch the cotton sample in multiple directions so that the defects contained in the cotton sample are exposed as fully as possible under the detection viewing angle.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is an exploded view of a device for testing cotton ginning quality provided by an embodiment of the present invention;

FIG2 is a schematic diagram of a first structure of a telescopic frame provided in an embodiment of the present invention;

FIG3 is a partial enlarged view of the end of the head end roller group provided in an embodiment of the present invention;

FIG4 is a partial enlarged view of the end of the tail roller group provided in an embodiment of the present invention;

FIG. 5 is a second structural schematic diagram of the telescopic frame provided in an embodiment of the present invention.

In the figure: 1. flattening mechanism; 2. fixing mechanism; 3. ceiling; 4. floor rail; 5. telescopic frame; 6. head end scissor arm; 7. tail end scissor arm; 8. middle scissor arm; 9. head end roller group; 10. middle roller group; 11. tail end roller group; 12. head end guide roller; 13. first elastic belt; 14. tail end guide roller; 15. second elastic belt; 16. conveyor belt; 17. first synchronous wheel; 18. second synchronous wheel; 19. transverse cylinder; 20. air bag; 21. spiral groove; 22. limit plate; 23. outer plate; 24. inner plate; 25. rail groove; 26. outer rail; 27. inner rail; 28. outer wheel; 29. inner wheel; 30. telescopic rod; 31. end sleeve; 32. cover plate; 33. air pipe; 34. first transmission belt; 35. second transmission belt; 36. placement groove.

DETAILED DESCRIPTION

The above and other embodiments and advantages of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

In one embodiment, as shown in FIGS. 1 to 5 .

The device for testing the quality of cotton ginning provided in this embodiment comprises a flattening mechanism 1 and a fixing mechanism 2 arranged side by side. The flattening mechanism 1 is used to flatten the cotton sample after ginning to form a thin cotton layer. The top of the fixing mechanism 2 is provided with a ceiling 3 with a camera device and a lighting device; the fixing mechanism 2 comprises a ground rail 4, on which a scissor-type telescopic frame 5 is provided. The telescopic frame 5 comprises an X-shaped head end scissor arm 6 and a tail end scissor arm 7, and a corresponding scissor arm 6 and a tail end scissor arm 7 are provided between the head end scissor arm 6 and the tail end scissor arm 7. A plurality of intermediate scissor arms 8 are connected, the upper end of the head end scissor arm 6 is provided with a head end roller group 9 with two rollers distributed up and down, the upper end of each intermediate scissor arm 8 is provided with an intermediate roller group 10 with two rollers distributed up and down, the upper end of the tail end scissor arm 7 is provided with a tail end roller group 11 with two rollers distributed up and down, a head end guide roller 12 is provided above the pin shaft of the head end scissor arm 6, the head end guide roller 12 and the pin shaft of the head end scissor arm 6 are connected by a first elastic belt 13, a tail end guide roller 14 is provided above the pin shaft of the tail end scissor arm 7, and the tail end guide roller 15 is provided at the same time. The roller 14 and the pin shaft of the tail end scissor arm 7 are connected by a second elastic belt 15. The lower roller of the head end scissor arm 6, the lower roller of each middle scissor arm 8, the lower roller of the tail end scissor arm 7, the tail end guide roller 14, and the head end guide roller 12 are covered with a conveyor belt 16. The two ends of the upper roller of the head end roller group 9 are respectively connected to the two ends of the lower roller of the head end roller group 9, and the two ends of the upper roller of the tail end roller group 11 are respectively connected to the second synchronous wheel 18. The two second synchronous wheels 18 are respectively connected to the two ends of the lower roller of the tail end roller group 11, the head end roller group 9 and the tail end roller group 11 are driven by a motor, and the upper rollers of each intermediate roller group 10 are respectively driven by a motor. A transverse electric cylinder 19 for driving the head end scissor arm 6 to open is provided at the ground rail 4. The upper roller of each intermediate roller group 10 is hollowed out and filled with an inflatable bag 20. The upper roller surface of each intermediate roller group 10 is provided with a spiral groove 21, and the spiral directions of the upper rollers of the two adjacent intermediate roller groups 10 are opposite.

In this embodiment, the device for testing the quality of cotton ginning can press the cotton sample on the conveyor belt 16, and then dynamically stretch the cotton sample in multiple directions so that the defects contained in the cotton sample are exposed as fully as possible under the detection angle of view. The specific working method of the device for testing the quality of cotton ginning is that the flattening mechanism 1 is used to flatten the cotton sample after ginning to form a thin cotton layer, and the thin cotton layer is sent into the fixing mechanism 2 from between the upper and lower rollers of the head end roller group 9. The head end roller group 9 and the tail end roller group 11 are driven by a motor, and at the same time drive the conveyor belt 16 to convey the thin cotton layer, during which the thin cotton layer passes through each intermediate roller group 10. The upper rollers of each intermediate roller group 10 are respectively driven by a motor, and during the transmission, the upper rollers of each intermediate roller group 10 rotate to assist the transmission of the thin cotton layer. After the transmission is in place, that is, after the thin cotton layer enters the tail end roller group 11, the transmission is stopped.

It should be added that during the conveying period, the upper and lower rollers of the head roller group 9 rotate in opposite directions under the action of the first synchronous wheel 17, and the tail roller group 11 also rotates in the same way. During this period, the upper rollers of each intermediate roller group 10 and the upper rollers of the head roller group 9 and the tail roller group 11 rotate in the same direction, and the lower rollers of each intermediate roller group 10 do not actively rotate.

After the transmission stops, the transverse electric cylinder 19 drives the head end scissor arm 6 to open horizontally along the direction of the ground rail 4. Due to the characteristics of the scissor arm itself, the middle scissor arm 8 and the tail end scissor arm 7 are also opened horizontally synchronously. As the scissor arm opens horizontally, the head end guide roller 12 and the tail end guide roller 14 are lifted up, and the spacing between the upper rollers of each intermediate roller group 10, the spacing between the upper rollers of the intermediate roller group 10 and the upper rollers of the head end roller group 9, and the spacing between the upper rollers of the intermediate roller group 10 and the upper rollers of the tail end roller group 11 are uniformly increased. As a result, the thin cotton layer originally pressed on the conveyor belt 16 by each upper roller is stretched in the transmission direction.

After that, the airbag 20 inside the upper roller of each intermediate roller group 10 is inflated, and the airbag 20 is pushed out from the spiral groove 21 due to expansion, forming a spiral pattern slightly protruding from the surface of the upper roller. These protruding spiral patterns press the thin cotton layer onto the lower roller of each intermediate roller group 10 through the conveyor belt 16. In the following period of time, the motors corresponding to the upper rollers of all intermediate roller groups 10 perform periodic forward and reverse rotation, and all upper rollers with the same spiral direction rotate in the same direction, and upper rollers with different spiral directions rotate in the opposite direction. Take two adjacent upper rollers as an example, because the spiral directions of the two adjacent upper rollers are opposite. Therefore, when one upper roller rotates forward, the other upper roller rotates backward. After a period of time, it is changed to when one upper roller rotates backward, the other upper roller rotates forward. The head and tail ends of the thin cotton layer are pressed by the head end roller group 9 and the tail end roller group 11 respectively. After the action of each intermediate roller group 10, the thin cotton layer is alternately stretched in different directions. Compared with the original linear transmission direction, the stretching direction after the action of the intermediate roller group 10 is equivalent to a dynamic W shape, so that the defects contained in the cotton sample are exposed to the detection angle as much as possible. As for the basic principle of detection, it is still to use the lighting device to generate light of different wavelengths to illuminate the cotton sample, and at the same time use the camera device to capture the image of the cotton sample surface illuminated by light of different wavelengths, and transmit the image to the computer through the digital image acquisition card for analysis and judgment, which will not be repeated here.

In one embodiment, as shown in FIG1 .

In the device for testing the quality of cotton ginning provided in this embodiment, when the telescopic frame 5 is in the initial state, the upper roller and the lower roller of the head end roller group 9 are directly opposite to the output port of the flattening mechanism 1. A limit plate 22 is provided at the end of the ground rail 4, and when the telescopic frame 5 is in the initial state, the lower end of the head end scissor arm 6 contacts the limit plate 22.

In this embodiment, when the traverse electric cylinder 19 does not drive the head end scissor arm 6, the telescopic frame 5 has an initial state, that is, the lower end of the head end scissor arm 6 is in contact with the limit plate 22, and the upper roller and the lower roller of the head end roller group 9 are directly opposite to the output port of the flattening mechanism 1. In this way, the thin cotton layer flattened by the flattening mechanism 1 can enter between the upper roller and the lower roller of the head end roller group 9. Of course, the thin cotton layer is in contact with the lower roller of the head end roller group 9 through the conveyor belt 16 rather than directly.

In one embodiment, as shown in FIG2 .

The device for testing the quality of cotton ginning provided in this embodiment comprises a ground rail 4 including an outer plate 23 and an inner plate 24, a rail groove 25 is formed between the outer plate 23 and the inner plate 24, an outer rail 26 is provided on the outer plate 23, an inner rail 27 is provided on the inner plate 24, outer wheels 28 and inner wheels 29 are respectively provided on both sides of the lower ends of the head end scissors arm 6, the middle scissors arm 8, and the tail end scissors arm 7, and the outer wheels 28 and the inner wheels 29 are respectively movably connected to the outer rail 26 and the inner rail 27.

In this embodiment, the lower ends of the head end scissor arm 6, the middle scissor arm 8, and the tail end scissor arm 7 of the device for testing the quality of cotton ginning are all extended into the rail groove 25, and the lower ends of the head end scissor arm 6, the middle scissor arm 8, and the tail end scissor arm 7 are respectively provided with outer wheels 28 and inner wheels 29. Such two-side arrangement can make the support of the head end scissor arm 6, the middle scissor arm 8, and the tail end scissor arm 7 more stable. The ground rail 4 includes the rail groove 25, the outer rail 26, and the inner rail 27, which also makes the lower ends of the head end scissor arm 6, the middle scissor arm 8, and the tail end scissor arm 7 more stably connected to the ground rail 4.

In one embodiment, as shown in FIG2 .

The device for testing the quality of cotton ginning provided in this embodiment has two transverse electric cylinders 19 respectively disposed at the inner sides of the two ground rails 4. The transverse electric cylinder 19 comprises a telescopic rod 30, the end of which is provided with an end sleeve 31, which is sleeved on the inner wheel 29 of the scissor arm 6 at the head end.

In this embodiment, the lateral electric cylinder 19 is provided at two locations. The front end scissor arms 6 are driven from both sides of the scissor-type telescopic frame 5, which is conducive to the movement of both sides with the same amplitude and synchronization during the opening of the telescopic frame 5.

In one embodiment, as shown in FIG. 2 and FIG. 5 .

In the device for testing the cotton ginning quality provided in this embodiment, a cover plate 32 is provided at one end of the upper roller of each intermediate roller group 10, and the other end is open, and an air pipe 33 connected to the air bag 20 is provided at the open end of the upper roller of each intermediate roller group 10, and the air pipe 33 is connected to an external air source. The motor driving the upper roller of the intermediate roller group 10 is located at the open end of the upper roller of the intermediate roller group 10.

In this embodiment, a cover plate 32 is provided at one end of the upper roller of each intermediate roller group 10 to prevent the inflatable bag 20 from overflowing to that end during inflation. The other end of the upper roller of each intermediate roller group 10 is opened, connected to the air pipe 33, and the motor is located at the open end of the upper roller of the intermediate roller group 10, which is conducive to the motor driving the upper roller of the intermediate roller group 10. It should be noted here that the number of rotations of each motor driving the upper roller of each intermediate roller group 10 is not large. Similarly, the amplitude of the opening of the head end scissor arm 6 driven by the transverse electric cylinder 19 is not large, as long as it can meet the stretching of the thin cotton layer in all directions, and it is not suitable to stretch it to cause faults. By constantly changing the direction in which the thin cotton layer is stretched, it is easy to expose the defects hidden in the cotton sample.

In one embodiment, as shown in FIG. 3 and FIG. 4 .

The device for testing the cotton ginning quality provided in this embodiment has an upper roller of the head end roller group 9 and the first synchronous wheel 17, as well as the first synchronous wheel 17 and the lower roller of the head end roller group 9 connected by a first transmission belt 34, and an upper roller of the tail end roller group 11 and the second synchronous wheel 18, as well as the second synchronous wheel 18 and the lower roller of the tail end roller group 11 connected by a second transmission belt 35.

In this embodiment, the upper roller and the lower roller of the head end roller group 9 are connected by the first synchronous wheel 17, rather than directly connecting the upper roller and the lower roller of the head end roller group 9 by the first transmission belt 34, so that the upper roller of the head end roller group 9 and the lower roller of the head end roller group 9 can rotate in opposite directions. Similarly, the upper roller of the tail end roller group 11 and the lower roller of the tail end roller group 11 can also rotate in opposite directions. In addition, the upper end of the tail end scissor arm 7 is provided with a placement groove 36, and the second synchronous wheel 18 and part of the second transmission belt 35 are located in the placement groove 36.

The specific implementation methods described above further describe the invention purpose, technical solutions, and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the protection scope of the present invention. It is particularly pointed out that for those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A device for testing the quality of cotton ginning, characterized in that it comprises a flattening mechanism (1) and a fixing mechanism (2) arranged side by side, wherein the flattening mechanism (1) is used to flatten the cotton sample after ginning to form a thin cotton layer, and the top of the fixing mechanism (2) is provided with a ceiling (3) with a camera device and a lighting device; The fixing mechanism (2) comprises a ground rail (4), a scissor-type telescopic frame (5) is arranged on the ground rail (4), the telescopic frame (5) comprises an X-shaped head end scissor arm (6) and a tail end scissor arm (7), a plurality of connected intermediate scissor arms (8) are arranged between the head end scissor arm (6) and the tail end scissor arm (7), the upper end of the head end scissor arm (6) is provided with a head end roller group (9) with two rollers distributed up and down, the upper end of each intermediate scissor arm (8) is provided with an intermediate roller group (10) with two rollers distributed up and down, and the tail end scissor arm ( The upper end of the scissor arm (7) is provided with a tail roller group (11) with two rollers distributed up and down, a head end guide roller (12) is provided above the pin shaft of the head end scissor arm (6), the head end guide roller (12) and the pin shaft of the head end scissor arm (6) are connected by a first elastic band (13), a tail end guide roller (14) is provided above the pin shaft of the tail end scissor arm (7), the tail end guide roller (14) and the pin shaft of the tail end scissor arm (7) are connected by a second elastic band (15), the lower roller of the head end scissor arm (6), each of the middle scissor arms ( The lower roller of the rear end scissor arm (8), the lower roller of the rear end scissor arm (7), the rear end guide roller (14), and the head end guide roller (12) are covered with a conveyor belt (16); the two ends of the upper roller of the head end roller group (9) are respectively connected to a first synchronous wheel (17) for transmission; the two first synchronous wheels (17) are respectively connected to the two ends of the lower roller of the head end roller group (9); the two ends of the upper roller of the rear end roller group (11) are respectively connected to a second synchronous wheel (18) for transmission; the two second synchronous wheels (18) are respectively connected to the lower roller of the rear end roller group (11) The two ends of the rollers are connected by transmission, the head end roller group (9) and the tail end roller group (11) are driven by a motor, the upper rollers of each intermediate roller group (10) are driven by a motor respectively, the ground rail (4) is provided with a transverse electric cylinder (19) for driving the head end scissor arm (6) to open, the upper roller of each intermediate roller group (10) is hollowed out and filled with an inflatable bag (20), the upper roller surface of each intermediate roller group (10) is provided with a spiral groove (21), and the spiral directions of the upper rollers of two adjacent intermediate roller groups (10) are opposite. 2. The device for testing the quality of cotton ginning according to claim 1 is characterized in that, when the telescopic frame (5) is in the initial state, the upper roller and the lower roller of the head end roller group (9) are directly opposite to the output port of the flattening mechanism (1). 3. The device for testing the quality of cotton ginning according to claim 2 is characterized in that a limit plate (22) is provided at the end of the ground rail (4), and when the telescopic frame (5) is in the initial state, the lower end of the head end scissors arm (6) contacts the limit plate (22). 4. The device for testing the quality of cotton ginning according to claim 1 is characterized in that the ground rail (4) includes an outer plate (23) and an inner plate (24), a rail groove (25) is formed between the outer plate (23) and the inner plate (24), an outer rail (26) is provided on the outer plate (23), and an inner rail (27) is provided on the inner plate (24), and outer wheels (28) and inner wheels (29) are respectively provided on both sides of the lower ends of the head end scissors arm (6), the middle scissors arm (8), and the tail end scissors arm (7), and the outer wheels (28) and the inner wheels (29) are respectively movably connected to the outer rail (26) and the inner rail (27). 5. The device for testing the quality of cotton ginning according to claim 4 is characterized in that the transverse electric cylinder (19) is set at two locations and is respectively located on the inner sides of the two ground rails (4). 6. The device for testing the quality of cotton rolling according to claim 5 is characterized in that the transverse electric cylinder (19) includes a telescopic rod (30), the end of the telescopic rod (30) is provided with an end sleeve (31), and the end sleeve (31) is sleeved on the inner wheel (29) of the head end scissors arm (6). 7. The device for testing the quality of cotton ginning according to claim 5 is characterized in that one end of the upper roller of each intermediate roller group (10) is provided with a cover plate (32) and the other end is open, and the open end of the upper roller of each intermediate roller group (10) is provided with an air pipe (33) connected to the inflatable bag (20), and the air pipe (33) is connected to an external air source. 8. The device for testing the quality of cotton ginning according to claim 7 is characterized in that the motor driving the upper roller of the intermediate roller group (10) is located at the open end of the upper roller of the intermediate roller group (10). 9. The device for testing the quality of cotton ginning according to claim 1 is characterized in that the upper roller of the head end roller group (9) and the first synchronous wheel (17), as well as the first synchronous wheel (17) and the lower roller of the head end roller group (9) are connected by a first transmission belt (34), and the upper roller of the tail end roller group (11) and the second synchronous wheel (18), as well as the second synchronous wheel (18) and the lower roller of the tail end roller group (11) are connected by a second transmission belt (35). 10. The device for testing the quality of cotton ginning according to claim 9 is characterized in that a placement groove (36) is provided at the upper end of the tail end scissor arm (7), and the second synchronous wheel (18) and part of the second transmission belt (35) are located in the placement groove (36).